GWART Incorrectly Writes Area Codes that Are Lower Than 300 (818664)

SYMPTOMS

You may find that FAX messages that are sent to FAX numbers that contain area codes that are lower than 300 (000-299) are not delivered correctly. If address spaces are defined to route FAX messages, the Microsoft Exchange Message Transfer Agent (MTA) may improperly interpret the FAX addresses that have area codes that are lower than 300 and then route the FAX messages inappropriately.

CAUSE

This problem occurs because of a logic error in the interpretation of the Gateway Address Routing Table (GWART). Area codes that are lower than 300 are interpreted as escaped ASCII characters instead of as area codes. Additionally, any specific routes that are defined for area codes that are lower than 300 may be written to the GWART improperly. For example, if a specific address space was defined for the area code 206, the entry may appear similar to the following entry in the GWART:

+1(040)206(041)*

This address space should actually appear in the GWART as:

+1(206)*

RESOLUTION

Hotfix Information

A supported fix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

You must have Microsoft Exchange Server versions 5.5 SP4 installed before you install this hotfix.

File Information

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.

Date         Time   Version            Size    File name
--------------------------------------------------------------
23-Apr-2003  20:27  5.5.2657.40     2,510,096  Admin.exe